Tooth brush



June 21, 1938. V L EF E 2,121,358

' TOO'Il-I BRUSH Filed Feb. 23, 1937 INVENTOR Patented June 21, 1938UNITED STATES 'roo'rn BRUSH Albert Loefller, New York, N. Y.

Application February 23, 1937, Serial No. 127,166

1 Claim.

This invention relates to brushes and more particularly to such as areused in cleaning the teeth.

All civilized people recognize the necessity of brushing the teeth atintervals, as a matter of appearance, cleanliness and health; as thenatural teeth are disposed in semi-arcuate formation, it is obvious thata straight brush is not well adapted for thispurpose.

It is therefore an object of this invention to provide a brush, curvedin conformity with a natural set of teeth, whereby better and quickerresults are attained.

A further feature is in the provision of a brush suited to operate onthe inner sides of the teeth in both upper and lower sets.

These prominent objects are accomplished by the novel construction andarrangement of parts hereinafter described and shown in. theaccompanying drawing, constituting an essential component of thisdisclosure, and in which:--

Figure 1 is a front elevational view of a brush arranged for the innersurface of the teeth and. equipped with a guide.

Figure 2 is a sectional view taken on line 2-2 of Figure 1.

Referring in greater detail to the drawing, the device will be seen toconsist of a flat handle [5, of semi-circular outline, provided with acentral circular opening [6 and having a stem I! set rigidlyin a curvedplate backing 20, in the upper side of which is set a plurality of brushtufts 22, diverging at their outer ends and adapted to operate on theinner surfaces of a set of teeth.

The stem or shank I1 is set in the convex plate backing 20 and may beheld by riveting as at 2|; and an arcuate guide 23, slidable on thestem, assists in retaining the brush in operating position.

In operation the handle is actuated in a manner to cause the brush tuftsto move up and down reciprocatively, cleaning the interstices betweenthe teeth eifectively, and also to move in a curved path at W111. 10

The operation is materially assisted by the guiding means, and isproductive of satisfactory results in the shortest time possible.

From the foregoing it will be seen that a novel and unusually practicaldevice for the purpose has been shown and described in its best knownembodiments; therefore what is claimed as new and sought to secure byLetters Patent, is:--

In a tooth brush, a handle, a brush backing extending substantially at aright angle uniformly from both sides at one end of said handle, saidbacking curved to present-a convex face directed towards the oppositeend of the handle and provided with brush tufts on its convex surface,its opposite concave side smooth, and a concavoconvex guide plate curvedin conformity with said backing and slidable on said handle relative tosaid brush tufts, said guide plate wider and longer than said backing tocover the extremities of said tufts and smooth surfaced throughout toprevent abrasions when the brush is in use.

ALBERT LQEFFLER.

